Re: [mpls] mpls vs IPv6
Erblichs <erblichs@earthlink.net> Thu, 30 September 2004 22:17 UTC
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Date: Thu, 30 Sep 2004 14:50:51 -0700
From: Erblichs <erblichs@earthlink.net>
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To: Piotr Marecki <p.marecki@swiat.pl>
Subject: Re: [mpls] mpls vs IPv6
References: <Pine.GSO.4.58.0409281121560.26661@ural2> <008401c4a637$13a8d3e0$0202a8c0@tdcinternet.pl>
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This is abit of simplification, but should suffice.. IPv6 is the next generation protocol of IPv4 to move beyond 32 bit addressing. IPv4 and IPv6 are end-system(ES), intermediate-system(IS), intermediate system, end sytem protocols that are destination based protocols. Note: ES is aka a host and IS is aka to a router. MPLS is a IS-IS protocol that is source based, based on labels being used for routing when entering a MPLS domain by a edge router and only being removed when exiting the MPLS domain at the exiting MPLS edge router. At the entering MPLS edge router, the same mechanisms apply as a VLAN tagged frame, to translate to the correct MPLS label based on a number of factors, one of them could be the incoming port. Thus, MPLS requres IPv4 and/or IPv6 to be properly routed, but IPv4/IPv6 does not need MPLS. Hopefully this helps... Mitchell Erblich --------------------------- Piotr Marecki wrote: > > Halo , > > IPv6 is related to MPLS in the same way as IPv4 ( i.e it is another network > protocol transported on top of MPLS ). In that sense IPv6 is > used with MPLS but not instead of. Please note that the IPv6 flow label has > dissimiliar meaning than MPLS label and shall be used to diffrentiatate > flows along with source and destination address ( see RFC3697 ) . > > regards > > Piotr Marecki > > ----- Original Message ----- > From: "Jung Janos" <jj306@hszk.bme.hu> > To: <mpls@ietf.org> > Sent: Tuesday, September 28, 2004 11:22 AM > Subject: [mpls] mpls vs IPv6 > > > Hi! > > > > I have to make some performance mesurement, with > > IPv6, IPv4, mpls, but first i must find out, > > if it has a sense. > > > > With MPLS I can create MPLS VPNs, QoS can (really?) be > > granted to packet flows, and routing is more faster. > > > > IPv6 has the "Flow label" field wich makes routing faster > > and has less header overhead than ipv4 (or mpls+ipv4) > > And i think flow label could have the same use as > > the mpls label value... > > > > How is MPLS to IPv6 related? > > > > Are they technologies that have nothing to do with each other? > > > > Or MPLS can bring new functionalities to IPv6 networks (like to IPv4), and > > so mpls+ipv6 would have a sense? > > And if so, what are the benefits? > > > > Or: > > > > IPv6 has all what mpls+ipv4 has (separeted flows to support qos > > VPNs faster routing) and so mpls would have no further use? > > > > In the new IPV6 era what role will mpls play? > > > > thanks for the answers! > > and sorry for the bad english > > > > regards > > JJ. > > (student) > > > > > > _______________________________________________ > > mpls mailing list > > mpls@lists.ietf.org > > https://www1.ietf.org/mailman/listinfo/mpls > > > > _______________________________________________ > mpls mailing list > mpls@lists.ietf.org > https://www1.ietf.org/mailman/listinfo/mpls _______________________________________________ mpls mailing list mpls@lists.ietf.org https://www1.ietf.org/mailman/listinfo/mpls
- RE: [mpls] mpls vs IPv6 richard.spencer
- [mpls] mpls vs IPv6 Jung Janos
- [mpls] mpls vs IPv6 Jung Janos
- Re: [mpls] mpls vs IPv6 Piotr Marecki
- Re: [mpls] mpls vs IPv6 Erblichs
- Re: [mpls] mpls vs IPv6 Marc Binderberger
- Re: [mpls] mpls vs IPv6 Spice Sylvia
- Re: [mpls] mpls vs IPv6 Marc Binderberger
- RE: [mpls] mpls vs IPv6 Peter Ashwood-Smith
- Re: [mpls] mpls vs IPv6 Spice Sylvia
- Re: [mpls] mpls vs IPv6 Loa Andersson
- Re: [mpls] mpls vs IPv6 Spice Sylvia
- Re: [mpls] mpls vs IPv6 Erblichs
- Re: [mpls] mpls vs IPv6 David Charlap
- Re: [mpls] mpls vs IPv6 Erblichs
- Re: [mpls] mpls vs IPv6 David Charlap
- Re: [mpls] mpls vs IPv6 Erblichs
- Re: [mpls] mpls vs IPv6 Claus Gruber